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{"bugzilla": {"description": "kernel: dm: fix a crash if blk_alloc_disk fails", "id": "2327178", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2327178"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndm: fix a crash if blk_alloc_disk fails\nIf blk_alloc_disk fails, the variable md->disk is set to an error value.\ncleanup_mapped_device will see that md->disk is non-NULL and it will\nattempt to access it, causing a crash on this statement\n\"md->disk->private_data = NULL;\"."], "name": "CVE-2024-50277", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50277\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50277\nhttps://lore.kernel.org/linux-cve-announce/2024111936-CVE-2024-50277-1fe3@gregkh/T"], "statement": "The issue is that possible Null pointer dereference if device initialization fails. The security impact is limited, because attacker cannot control it (means hard to trigger fail path during boot or during other special case of device initialization and after that hard to use Null pointer dereference for anything apart from deny of service).", "threat_severity": "Moderate"}